Safety envelope and blank for making the same



Oct'. 154, 1924.

PM-ENT; orFica.

inentingen L. nlnet-traen, vor BROOKLYN, nsw-vonk,

Saarl-Y www@ AND 13T-Antros Meme Be it known that 1,

citizen of the United States, re' siding at Brooklyn, in the county of.

MAN,

Applies-titane@ retmary 1e, 1923.

concern MoRTrMnn L'. Hmonkings and State of NewYork, haveinvented newand useful Improvements in Safety Envelopes and Blanks fo which thefollowing is Making the Same, of

a specification.y

This invention relates to envelopes.

More particularly,

the invention relates to envelopes of the kind disclosed in UnitedStates Letters Patent Nos.` 598,290, 641,291,

717,993, 780,883, and 1,351,851, granted to Some of the objects of thetion are: to improve envelopes of the kind mentioned by simplifying thesame without sacrificing of the factor of safety hitherto attained; toproduce a blank for making a safety envelope which is of su-ch form andconstruction as to facilitate the formation of an envelope in VthedespatchV of a letter; to p-roduce absolute proof again ful disregard ofthe an envelope which is st persons having a willrights of another; and

with these and other objects in view the invention resides in of formingan envelope,

the particular manner the overlapping relation of parts and thefunctions of features thereof hereinafter lustrated in the accompanyingwhich Figure 1 is a view of the envelope-blank fully described andildrawing, in

of the present invention.

Figure 2 is a view showing two of the back folds folded over.`

Figure 3 is a view showing the formed envelope opened.

Referring now more particularly to the several views of the drawing,cially Figure 1, it Will be blank is made first, from which the envelopeV blank 10 hasall ently described, envelope.

and espeapparent that a as the blank 10, 11 is made. The

such

the attributes, to be presfor the making of a safety The blank 10' ismade from a single piece of material of any kind, and 1n fact is stampedout vide a front fo-ld 12,

front fold 12, and 15 on the front embodies a partly of the material toproa seal flap 13 on the 'back folds 14, 14, and

fold. The front fold 12 severed portion 16 by virtue of the perforations17 and 18, Whereas, the seal flap severed portion 19 13 embodies apartly lby virtue of the perfold and the seal flap'lv present invene7,27, and es.

THE' SAME.

Sieriall No. 6-1-9 ,477.

v14. IThe back fold 15 is at the side of the front fold opposite theseal flap. The fold 15 has a line of perforationsv 23 and a line ofperforations 24, thusv providing the fold 15 with perforations ralongthe free edges thereof.y The marginal :portion of the seal flap betweenthe perforations thereof and its free edges is ginnmed as at 25. The

marginal portions of the backfold 15 between the perforations jacentfree edges are gummed as at 26. rl`he back folds 14, 14, and 15-arefolded overl the front fold respectively on the fold lines To formanenvelope the back folds 14, 14, are first folded over the front fold12, and then the back fold 15 is folded over the back folds 14,14, andthat of course is done after the gummed portions 26 have been moistened.

substantially mid-Way of the gummed vportions 26 longitudinally sealflap 13 is brought 'nto sealing relation with portions of the back foldsinthe despatch of a letter after the moistening of the gummed portion25, ythe perforations 21 of the back folds 14, 14, will liesubstantially mid-way of the gummed portion 25. v

It will now be manifest that, due to the overlapping relation of theseveral folds and the disposition of the perforations therein, it willbel Well night impossible to steam the seams without permanentdestruction of por.- tions of the folds at the points steamed; thatpointed instruments willo-nly pick up .the portions at the seams becauseof the perforation's; `and that the addressee byv moistening theperforations portion 16 or the portion 19 to roll the same as'shown inFigure 3 for the opening of the envelope. y. 1 What is claimed is: n 1.A blank for making a safety envelope comprising a front fold, backfolds, a seal thereof and the ad- 17 may thumb the Y Under the relationof the back l folds the lines of perforations 22 Will vlie thereof. Whenthe y formed to eifect an entry Hap, a partly severed portion embodiedloy the fro-nt fold and the seal flap, the marginal portion of said sealflap being gummed, and each of said hack folds provided With a pluralityof free marginal edges and having perforations along said edges.

2. A blank for making a safety envelope comprising a front fold, ybackfolds, each of which is provided With a plurality of free marginal edgesand having perforations along said edges, one back yfold at each end ofthe front fold and at one side of iap at one side of severed portion inthe seal iap, the severed portions being the front fold7 a partly thefront fold, a seal the front fold and inl adjoined, and the seal flaphaving a .marginal gummed portion. l

8. An envelope Comprising afront fold,

bank folds each of which is provided with a plurality of free marginaledges and having perforations along `said edges and portions of oneyback fold loverlapping portions respectively of the other haelt folds,and

a seal Hap on the front fold having-,marginal MORTIMER L. HINCHMAN.

